Carbon Nanotubes and Graphene - Research and Applications

The formation of dense Ni nanoparticles of the order of 10^11–10^12 cm-2 was achieved by ion implantation using FIB. Vertically aligned CNTs were synthesized from particles annealed at 700°C although the highest particle density was obtained after post-implantation annealing at 460°C. Carbon nanotubes were grown preferentially from particles larger than 10 nm under these CVD conditions and in the Ni/SiO2 system. Growth of vertically aligned CNTs from catalyst particles prepared by ion implantation could be a very useful technique for microelectronics applications.
Source: Diamond and Related Materials (2008), article in press